OT USB ports

[Christopher Hack]

Hi, slightly off topic, but all related to my beloved cube. Can anyone tell
me if there are any known faults with the USB ports on the Cinema 22"
display. I have been cannibalising two screens to get one good one, and
swapping lots of internal parts. The ports have stopped working and it is
clearly likely to be as a result of my fiddling, but I just wanted to check
before pulling the whole thing apart again. Thanks as ever in advance.
Chris.